Oil-burner.



J. E. GRUDA. OIL BURNER. APPJJIGATION FILED SEPT. 26, 19o?.l

Patented Dec. 294 1908.

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J. E. GRUDA.

OIL BURNER. APPLICATION FILED szmze, 1907.

Patented Dec. 29, 1.908.l

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sli ll Bs l JACOB E. GRL'DA, OF CHICAGO, ILLNOIS, ASSlGNOR OF ONEJIALF l() AlYYllV-l M. GRUDA,

OF CHlGGO, lLLlNOIS.

{lill-BURNER.

vSpec`1'ca.l:cm of Letters Patent.

Patented Dee. 29, i908 Application iled September 26, 1907. Serial No. f.

To all whom 'it may Concern:

Be it known the-t l, Jiioos E. GRUDA, a citizen el the United States ol America.. and a resident of Chicago, eounty el' Cook, Sttte of lllinois, have invented certain new and useful lmpro'veinents in Oil-Burners, of Wliioh the olloui is :t speeilioetion.

The .moin olijlixots of this invention are to provide en improved forni of oil burner for iurnztres, rfliieh is capable oi eilieiently burning' sul" gril-do el iuel oilwhieh will. llow in s pipo: to provide sniniproved forni of Vziporizer 'l'or apparatus et' this ellirzteter; to provide iniproiv'ed ieens 'for mixing air sind oil .so :is to preduee s lloine of maximum teiupemtureg and to provide en ii'npro-velil erifuigysimmt el parte to insure thorough eoniliu lum el the, ermorized oil lx1-,llore it eeuws into .toolset mili the eenlperstively cool wells ol Li.. furnace. These olijeets :ire eeeoniplished by the devise shown in the zteeoiupenyiug drz'nviugs, in uliieli- Figure l is n vertical longitudinal section of :tu oil burner ons 'ueted seeording to this iuventieu. '.ligg. is :in enlarged sere tional det-oil oi" the nir :ind oil mixing devices. Fig. 3 is :in elevation of the oirinlet littiugg showing the tapered spiral passages in its periphery. llig. is en I Mii'.

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elevation elE Lne oil-inlet ln the construction vshown the turns-ee irovlded with s Combustion ohainlier l which extends through the iront Wall and is fastened thereto hy ineens ol ilsnges. This chamber is e en eteeeh ende-ud extends inward of 'the l'uruzme fur enough te Confine the lla-me tl'iroughout the length of the oil vaporizing apparatus, :is will hereinafter appeer.

The burner eoniprises s hollowT easing' 2 which in the iiorio. shown iL ina-de up oi" plurality of detachable parts. The pipe U connects the zur passages of the easing 2 with :t suitable souree et' air under pressure, as :t blower. The mein Volume of sir 'from the pipe 3 passes through the passage 4 and is conducted lay e. pi e 5 into the combustion chamber fl clelleotor 6, in the forni of s curved nipple, extends into the passage l and deileets s portion of the air turrent into the passage 7, which communicates with the interor ot the stomizer pipe 8 located Goneentrioslly within the pipe 5, and also disehsrgin into the chamber l, es

' will hereinafter appear.

l 1 l l Oil enters the apparatus through the pipe 9, which is controlled hy e. telve l() and. is Connected by the litting il with the oil feed pipe 12, which extends along eoneentrieslly within the sir pipes 8 and Connected to the end ol the oil pipe l2, and forniinfrf s eonlinustien thereof is en elongated r.. geef erster centrally l zite l.v-;ith respect to the burner and comprisingI pair ol pipes 13 and i4 arranged one within the other und coinniunioeting et their outer ends. Tee pipe Ail extends beyond the open end of the pipe :ind is closed :it its end by e passing out of the end el" the pipe iB flows liselixmril in the space lietweei'i the Wells of the pipes lil end 14, te the inner end oi th pipe il :nifl is Tziporixeil through oo. with the hosted n" lls ol llie pipe le.

' .ly eonnfeets the iniV A lining l5 rigl ol th f pipe 14 with the pipes 'l2 :ind ,terms n. Coupling lor (bonnes/ling` sind pipes and 'l'he fitting 16 Yhas e, here' E lerger than the external diameter oi the pipe 3.2. :ind leuning :t Continuation ol the interior et larger et the reoeiif'ingend, Whieh is the left in the drawinus and sre'cfraduellv eeno, 1 e 1 fr.. l traeted toward their delivery ene. ilus zirimigeJ-einent of the air passages produces e whn ling current ol' vair oi' high Velocity.

in the forni shown there are lour of suoli passages 2]., and the fitting 16 is ooi-respondingly provided with four fuel inlet passages 18, which are located so that the jets of geseous fuel issuing from the passages 18 will `in tersect the paths of the atomizing air jets issuing from the passages 2l. 'The result is a whirling flsine which extends along and surrounds the pipe l/lin which the oil is gusiiied.

The, fitting i6 slidalih7 fits within e counter" bore in the end ol" the litting 20, said titties@ telescopio@ with eseh other and being tively adjustable for controlling the llow of lFuel through the? inlets i8, as will hereinafter appear. The tting l1 has swiveled sonneslll) , and may be slid tion, the oil valve tion with a stem 22 which is provided with a handle 23 outside of the casing and which has threaded connection with the casing, so that the ipe 12 may be adjusted longitudinally witffin the pipe 8 by rotatin f the handle 23. In this manner the parts 16 and 20 are shifted relatively of each other and the part 20 acts as a valve controlling the escape of fuel at the inlets 18.

The air from the pipe 5 unites with the mixed air and gas from the passages 1S and 21, and serves also to direct the flame in a substantially cylindrical path along and concentric with the vapoiizer. In oider to prevent the iame from striking the comparatively cool walls at the opposite end of the furnace and causing a deposit to accumulate thereon, a conical deiiector plate 24 is mounted at the end of the ipe 14 and serves to spread the flame in allp directions upon leaving the chamber 1. An additional supply of air may be admitted through the passages 25 around ythe outside of the air pipe 5, when conditions require it. This passage l25 is controlled by a clfsure in the form of a plate 26 which is slidably mounted on the pipe 5 into or out of position for passage 25.

closing the l urning certain kinds of oils, it is an ad- Inh vided with a water inlet 27, through which a fine jet of water may be admitted to the air current assing through the pipe 5. The inlet 27 is controlled by a needle valve 28.

The o eration of the device shown is as follows: Vfhen the device is in normal opera- 10 is open and ai;l is forced into the casing through the pipe 3 by means qi" a suitable blower. The air flows upwardly through the passage 4 and is discharged into the chamber l by the pipe 5.

chambc: 1 from the pipe S, through the nozzle 19 and being converted into a whirling blast. rfhe mixture of air and oil is ignited uithin the chamber 1,l and the iame is carried along said chamber into the furnace. r[he iame heats the oil in its passage through the generator, and it enters the chamber 1 at the inlets 18 in the form of a gas which becomes thoroughly mixed with the whirling current of air and produces a flame of intense heat. By adjusting the handle 23, the areas of the inlets 18 may be regulated so as to produce the proper proportici of oil and air for the most perfect combustion. rlfhe plate 26 provides an adjustment whereby an additional regulation of the air supply may be had to suit atmospheric conditions. The concentric air currents entering the combustion chamber from the pipe 8 and the inlet'25, serve to cause the flame to closely envelop the generator.

On starting trie and letare cool, oil will issue in line jets at the inlets 18. This will be atomized by the atomizing currents of air issuing from the passages 2l and may be at once ignited by a match inserted at the opening 25. As the pipe 14 becomes heated, gas is generated therein, and the flame in the chamber 1 rapidly reaches its maximum intensity, the final adjustment being made by means of the handle 23.

What I claim as my invention and desire to secure by Letters Patent is 1. A device of the class described, comprising a centrally located gas generator, an oil feed therefor, a burner located a considerable distance inward of the end of said-genorator having fuel outlets arranged around said generator, and having outlets for an atomizing fluid comprising spiral passages arranged adjacent to said fuel outlets to produce a whirling flame enveloping the generator for vaporizing the oil in its passage to the fuel outlets.

2. A device of the class described, coni prising a centrally located gas generator, an oil feed therefor, a burner located a considerable distance inward of the end of said generator and having air and fuel atomizing outlets arranged around said generator, said air outlets comprising spiral passages arranged to produce a whirling iiame'enveloping the generator, for vaporizing the oil in its passage to the fuel outlets.

3. An oil burner, comprising a central oil feed tube open at its front end, a gas generating tube surrounding said feed, being closed at its front end and extending backward a considerable distance along said oil feed tube, a gas outlet located rearward of the front end of said outer tube, an air outlet coacting with said gas outlet and adapted to feed and direct a tubular flame along said tubes for generating gas from the oil therein, and a deflector mounted on said tubes at their front end and adapted to spread the flame.

4. An oil burner, comprising a central oil feed tube open at its front end, a gas generating tube surrounding said feed, being lclosed at its front end and extending backward a considerable distance along said oil feed tube, said generator tube having therein a plurality of gas outlets located a considerable distance inward of the free end of said tubes, a member telescoping said tubes near said outlets and having therein. a plurality of air passages directed along said tubes and across said outlets for mixing air with the gas issuing therefrom and directing the, flame along said tubes toward the free end, and means for relatively adjusting said member and outer tube for enlarging and contracting said outlets. j f

5. An oil burner, comprising an air feed burner-when the pipes 13 eoaaae tube, an oil inlet tube located Within said air feed tube and extending longitudinally therethrough and having transversely disposed fuel outlets near the outer end of said air feed tube, a member surrounding said oil tube and fitting the inner part of said air feed tube near its outer end, said member having in its periphery a plurality of spiral passages disposed so as to direct jets of air across said fuel outlets for atomizing the fuel issuing therefrom and each tapered so as to be gradually contracted toward its delivery end.

6. An oil burner, comprising an air feed tube, an oil inlet tube located Within said air feed' tube and extending longitudinally 'therethrough and having transversely disposed fuel outlets near the outer end of said air feed tube, a member surrounding said oil tube and tting the inner part of said air feedtube near its outer end, said member having in its periphery a plurality of s iral passages disposed so as to direct jets o air across said fuel outlets for atomizing the fuel issuing therefrom and each tapered so as y'to be gradually vcontracted toward its delivery end, said member and oil tube being relatively adjustable in a longitudinal direction for controlling the flow of fuel through said outlet.

7. An oil burner, comprising an air feed tube, an oil inlet tube located within said air feed tube and extending longitudinally therethrough and having transversely disposed fuel outlets near the outer' end of said air feed tube, a member surrounding said oil tube and fitting the inner part of said air feed tube near its outer end, said member having in its periphery a plurality of spiral passages disposed so Aas to direct jets of air across said fuel outlets for atomizing the fuel issuing therefrom and each tapered so as to be gradually contracted toward its de 'livery end, said oil tube being extended a conof spiral passages each said air tube and surrounded by a second tube communicating with said oil tube at its outer end and communicating with said fuel outlets at its inner end, said oil tube and outer tube being arranged to form a generator and adapted to vaporize the oil in its passage through said tubes.

8.- A device of the class described, comprising a centrally located elongated gas generator, an oil feed pipe connected to one end of said generator, an atomizer surrounding said oil feed pipe and having at its end a converging tapered nozzle directed along said generator, a member fitting within said nozzle and having-in its periphery a plurality of spiral passages each convergingly tapered toward said generator, and said generator having outlets adjacent to and discharging into paths of atomizing jets issuing from said spiral passages.

9. A device of the class described, comprising a centrally located elongated gas generator,v an oil feed pipe connected to one end of said generator, an atomizer surrounding said oil feed pipe and having at its end sa1d generator, a member fitting within said nozzle and having in its periphery a plurality convergingly tapered toward said generator, said generator having outlets adjacent to and discharging into the paths of atoniizing jets issuing from said l spiral passages, and an air pipe surrounding l said atomizer pipe and adapted to direct a j tubular air current along said generator to cause the Yllame at said burner to closely I envelop said generator.

Signed at Chicago this 24th day ber i907.

of Septem- Witnesses: l WM. lt. RUMMLER, I E. A. HUMA-nina.

JACOB E. GRUDA.

siderable distance beyond the outer end of t a converging tapered nozzle directed along- 

